Chart A
## Linking to GEOS 3.10.2, GDAL 3.4.1, PROJ 8.2.1; sf_use_s2() is TRUE
## ℹ Google's Terms of Service: <https://mapsplatform.google.com>
## ℹ Please cite ggmap if you use it! Use `citation("ggmap")` for details.
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## Attaching package: 'ggmap'
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## The following object is masked from 'package:plotly':
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## wind
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## Data (c) OpenStreetMap contributors, ODbL 1.0. https://www.openstreetmap.org/copyright
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## To enable caching of data, set `options(tigris_use_cache = TRUE)`
## in your R script or .Rprofile.
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## Attaching package: 'dplyr'
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## The following objects are masked from 'package:stats':
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## filter, lag
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## The following objects are masked from 'package:base':
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## intersect, setdiff, setequal, union
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## To install your API key for use in future sessions, run this function with `install = TRUE`.
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## ℹ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.